Goodwill and Acquired Intangibles - Schedule of Goodwill by Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 8,057	$ 8,068
Goodwill adjustments	6	(11)
Goodwill, ending balance	8,093	8,057
Operating Segments
Goodwill [Roll Forward]
Acquisitions	30
Commercial Airplanes
Goodwill [Roll Forward]
Goodwill, beginning balance	1,316	1,316
Goodwill adjustments
Goodwill, ending balance	1,319	1,316
Commercial Airplanes | Operating Segments
Goodwill [Roll Forward]
Acquisitions	3
Defense, Space & Security
Goodwill [Roll Forward]
Goodwill, beginning balance	3,224	3,224
Goodwill adjustments
Goodwill, ending balance	3,235	3,224
Defense, Space & Security | Operating Segments
Goodwill [Roll Forward]
Acquisitions	11
Global Services
Goodwill [Roll Forward]
Goodwill, beginning balance	3,432	3,443
Goodwill adjustments	6	(11)
Goodwill, ending balance	3,454	3,432
Global Services | Operating Segments
Goodwill [Roll Forward]
Acquisitions	16
Other
Goodwill [Roll Forward]
Goodwill, beginning balance	85	85
Goodwill adjustments
Goodwill, ending balance	85	$ 85
Other | Operating Segments
Goodwill [Roll Forward]
Acquisitions